Integration of microelectrodes with etched microchannels for in-stream electrochemical analysis

摘要

Microelectrodes integrated with etched microfluidic flow channels alow traditional electroanalytical techniques to be performed on microliter and smaller volumes and also enable new detection techniques which are based upon the interaction between the microelectrodes and the diffusional mixing that occurs between flow lamina at low Reynolds numbers. Conductivity versus mixing measurements, anodic stripping voltammetry, and isolation of microelectrodes by sheath flow are demosntrated for an experimental device.